scholarly journals The role of sTNFSF14 in the liver mitochondrial dynamics in obese patients

2021 ◽  
Vol 20 (3) ◽  
pp. 62-71
Author(s):  
A. A. Komar ◽  
D. A. Skuratovskaia ◽  
M. A. Vulf ◽  
H. Q. Vu ◽  
A. Darinskas ◽  
...  
Keyword(s):  
Liver Biopsy ◽  
Quantitative Determination ◽  
Blood Plasma ◽  
Mitochondrial Dynamics ◽  
Expression Level ◽  
Cellular Respiration ◽  
Control Group ◽  
Obese Patients

Background. The pathogenesis of nonalcoholic fatty liver disease (NAFLD), which develops in obesity and type 2 diabetes mellitus (T2DM), is associated with the effects of inflammatory factors on the liver parenchyma and liver mitochondrial dysfunction.Aim. To determine the role of sTNFSF14 in the regulation of liver mitochondrial biogenesis in obese patients with and without T2DM.Materials and methods. The study included 263 obese patients with and without T2DM and 42 apparently healthy donors. Quantitative determination of cytokines in the blood plasma was performed by fluorescence flow cytometry. The level of relative gene expression in the liver biopsy samples was investigated by real-time PCR. Semi-quantitative determination of proteins in the liver biopsy samples was studied by western blotting.Results. The study showed that the levels of sTNFSF14, interleukin (IL)-10, gp130 / sIL-6Rb, and sIL-6Ra in the blood plasma of the obese patients without T2DM significantly exceeded the similar values in the control patients and obese patients with T2DM. In the liver biopsy samples of the obese patients with T2DM and a body mass index (BMI) > 40 kg / m2, the expression level of the dynamin-1-like protein (DRP1 / DNM1L) gene was lower than in the control group, and the expression level of the mitofusin 2 (MFN2) gene tended to be higher. Compared with the control group, an increase in the expression level of the NADH-ubiquinone oxidoreductase chain 4 (MT-ND4) gene was recorded in the liver of all the obese patients. The patients with obesity showed a decrease in the amount of mitochondrial DNA (mtDNA) compared with the control group.Conclusion. Thus, sTNFSF14, interacting with IL-10 and gp130 / sIL-6Rb in the circulation, positively effects the liver in the obese patients without T2DM. A low level of sTNFSF14 in the blood plasma of the obese patients with T2DM results in decreased mitochondrial division and increased cellular respiration.

scholarly journals Development and validation of method for quantitative determination of sildenafil and n-desmethyl sildenafil by HPLC-MS/MS in human blood plasma

2017 ◽  
Vol 0 (1 (5)) ◽  
pp. 22-32 ◽  
Author(s):  
Igor Kuznetsov ◽  
Helen Naumenko ◽  
Nataliia Reznichenko ◽  
Andrey Kostiuk ◽  
Roman Savyak ◽  
...  
Keyword(s):  
Quantitative Determination ◽  
Blood Plasma ◽  
Human Blood ◽  
Human Blood Plasma ◽  
Development And Validation

Correction of Psychological Status by Family Focused Technologies

2016 ◽  
pp. 129-131
Author(s):  
Serhii Vdovychenko
Keyword(s):  
Traditional Approach ◽  
Married Couple ◽  
Psychological Status ◽  
Control Group ◽  
Premature Births ◽  
The Family ◽  
Risk Patients ◽  
Individual Preparation

The objective: to show a role of the family focused technologies in correction of psychological status and depression of frequency of pathology of pregnancy at women of high obstetric risk. Patients and methods: for determination of efficiency of prophylaxis of pathology of pregnancy on the basis of use of the family focused technologies complex clinical-psychological and laboratory and tool examination of 300 women with factors of obstetric risk which were divided into two groups was conducted. In the main group – 182 women with motivation on partner labors to which provided training on system of individual preparation of married couple to labors. The control group consisted of 118 women with a traditional approach to pain management that have not been prenatal training. Results. Use of the family focused technologies during pregnancy allows correction of psyhological status and to reduce significantly the frequency of the main complications of pregnancy, especially not incubation and premature births. Conclusion. In our opinion, the technique is simple, available and can widely be used in practical health care at women with high obstetric risk.

Platelet Functions are Decreased in Obesity and Restored after Weight Loss: Evidence for a Role of the SERCA3-Dependent ADP Secretion Pathway

2019 ◽  
Vol 119 (03) ◽  
pp. 384-396 ◽  
Author(s):  
Ziane Elaïb ◽  
Jose Lopez ◽  
Muriel Coupaye ◽  
Kevin Zuber ◽  
Yann Becker ◽  
...  
Keyword(s):  
Weight Loss ◽  
Gastric Bypass Surgery ◽  
Calcium Signalling ◽  
Adenosine Diphosphate ◽  
Control Group ◽  
Obese Patients ◽  
Secretion Pathway ◽  
Healthy Control ◽  
Platelet Functions

AbstractIn obesity, platelets are described as hyperactive, mainly based on increased platelet size and presence of pro-thrombotic plasmatic molecules. We explored platelet functions, including calcium signalling in obesity, and the effect of weight loss. We included 40 obese patients (women with body mass index [BMI] of ≥ 35 kg/m2) who were to undergo gastric bypass surgery and 40 healthy lean subjects (women with BMI of < 25 kg/m2) as a control group. Approximately 1 year after surgery, the obese patients lost weight (75% had a BMI < 35 kg/m2). They were explored a second time with the same healthy control for the same platelet experiments. Compared with controls, obese patients' platelets displayed reduced sensitivity to thrombin (aggregation EC50 increased by 1.9 ± 0.3-fold, p = 0.005) and a lower Ca2+ response (70 ± 7% decrease, p < 10−4). In 17 pairs of patients, we performed additional experiments: in obese patients' platelets, thrombin-induced αIIbβ3 activation was significantly lower (p = 0.003) and sarco-endoplasmic reticulum Ca2+ATPase (SERCA3) expression was decreased (48 ± 6% decrease, p < 10−4). These differences were abolished after weight loss. Interestingly, pharmacological inhibition of SERCA3 activity in control group's platelets mimicked similar alterations than in obese patients' platelets and was associated with defective adenosine diphosphate (ADP) secretion. Addition of ADP to agonist restored platelet functions in obese patients and in SERCA3-inhibited control platelets (five experiments) confirming the direct involvement of the SERCA3-dependent ADP secretion pathway. This is the first study demonstrating that platelets from obese patients are hypo-reactive, due to a deficiency of SERCA3-dependent ADP secretion. Weight loss restores SERCA3 activity and subsequent calcium signalling, αIIbβ3 activation, platelet aggregation and ADP secretion.

Development and Validation of an LC/MS Method for Quantitative Determination of Thiamine in Blood Plasma

2013 ◽  
Vol 46 (12) ◽  
pp. 742-744 ◽  
Author(s):  
O. A. Tashirova ◽  
G. V. Ramenskaya ◽  
A. M. Vlasov ◽  
M. R. Khaitov
Keyword(s):  
Quantitative Determination ◽  
Blood Plasma ◽  
Development And Validation ◽  
In Blood Plasma

scholarly journals Nonalcoholic Steatohepatitis: An Evolving Diagnosis

2000 ◽  
Vol 14 (4) ◽  
pp. 321-326 ◽  
Author(s):  
Brent A Neuschwander-Tetri
Keyword(s):  
Alcohol Abuse ◽  
Liver Biopsy ◽  
Nonalcoholic Steatohepatitis ◽  
Aminotransferase Level ◽  
Obese Patients ◽  
Imaging Studies ◽  
Liver Transplants ◽  
Pathophysiological Role ◽  
Alanine Aminotransferase Level

Nonalcoholic steatohepatitis (NASH) is a histological diagnosis applied to a constellation of liver biopsy findings that develop in the absence of alcohol abuse. Steatosis, a mixed cellular inflammatory infiltrate across the lobule, evidence of hepatocyte injury and fibrosis are the findings that can be seen. This entity is often identified during evaluation of elevated aminotransferases after exclusion of viral, metabolic and other causes of liver disease. Obesity is a major risk factor for NASH. The role of diabetes is less certain, although evidence is accumulating that hyperinsulinism may play an important pathophysiological role. Patients sometimes suffer from right upper quadrant abdominal pain and fatigue; examination may reveal centripetal obesity and hepatomegaly. Although patients are often discovered because of persistent aminotransferase elevations, these enzymes can be normal in NASH. When they are elevated, the alanine aminotransferase level is typically significantly greater than the aspartate aminotransferase level. This can be particularly helpful for excluding occult alcohol abuse. Imaging studies identify hepatic steatosis when the amount of fat in the liver is significant; however, imaging does not distinguish benign steatosis from NASH. Ultimately a liver biopsy is needed to diagnose NASH. The biopsy may be useful for establishing prognosis based on the presence or absence of fibrosis and for excluding other unexpected causes of liver enzyme elevations. Weight loss is the mainstay of treatment for obese patients. About 15% to 40% of NASH patients develop fibrosis; how many of these cases progress to cirrhosis is unknown, but about 1% of liver transplants are performed with a pretransplant diagnosis of NASH.

Level of Nitrogen Oxide and Indicators of Oxidative-Antioxidative Status in the Gingival Tissues, Blood Plasma in Experimental Chronic Gastritis and Duodenitis and Drug Correction

2017 ◽  
Vol 31 ◽  
pp. 83-90
Author(s):  
Y.G. Romanenko
Keyword(s):  
Nitric Oxide ◽  
Calcium Carbonate ◽  
Blood Plasma ◽  
Chronic Gastritis ◽  
Gingival Tissue ◽  
Control Group ◽  
Treatment Level ◽  
Antioxidative Status ◽  
Nitric Oxide Metabolites

model of chronic gastritis and duodenitis was conducted in 48 immature Wistar rats both gender by intragastric injection of medical bile. Control group consisted of 10 animals. After approximation model of the gastritis and duodenitis rats were divided into five subgroups: the 1st subgroup (before treatment, 9 rats), subgroup 2 (10 animals) received the antioxidant, subgroup 3 (11 animals) – received NO donator, subgroup 4 (10 animals) - received an antioxidant and NO donator, subgroup 5 (8 animals) – received the antioxidant, NO donator and calcium carbonate. In rats with gastritis and duodenitis was observed redistribution of stable metabolites of nitric oxide: decreasing level in the gingival homogenates and increasing in the blood plasma. Level of malondialdehyde and aldehyddehydrogenase in the gingival tissue increased, and in the blood plasma decreased, on a background of catalase activation; content of ketone phenilhydrazone remained in the level of control group. Decreasing markers of oxidation lipids and proteins in the blood plasma, on a background of increasing levels of catalase and nitric oxide metabolites (in 14 times), indicates about a key role of NO in the antioxidant protection of organism in a case of disease.Application of antioxidant could not impact on the indicators of oxidation lipids and proteins. It had been shown decreasing content of the nitric oxide metabolites in the gingival tissues and blood plasma. Drug correction with donator of nitric oxide have to increase markers of oxidation lipids and proteins in the gingival tissues, on a background of high catalase activity and low levels of nitric oxide metabolites. In the blood plasma content of nitric oxide metabolites was higher, which indicated about an active inflammatory process in the stomach and duodenum mucosa. Indicators of the protein molecules fragmentation and malondialdehyde were not differ from those before treatment. Level of catalase was in two times higher, than in the control group, but level of superoxide dismutase was decreased. Complex of antioxidant and donator of nitric oxide helped to stabilise the indicators of oxidation lipids and proteins, although level of nitric oxide metabolites in the gingiva was significantly decreased. Application complex from the antioxidant, donator of nitric oxide and calcium carbonate at the treatment of chronic gastritis and duodenitis restored an oxidative-antioxidative status in the blood plasma and gingival tissues, increasing the production of nitric oxide to a level in the control group.

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